#include <HardwareSerial.h>

void setup()
{
    pinMode(LED_BUILTIN, OUTPUT);
    SerialUSB.begin(115200);
}

int g_Iter = 0;

void loop()
{
    digitalWrite(LED_BUILTIN, HIGH);
    delay(1000);
    digitalWrite(LED_BUILTIN, LOW);
    delay(1000);
    
    char tmp[32];
    sprintf(tmp, "Iteration %d\r\n", g_Iter++);
    SerialUSB.write(tmp);
}
